氮、钾肥用量与配比对大麦籽粒品质的影响  

The effect of nitrogen and potassium fertilizer application rates and timing on barley grain quality:

作　　者：陈锦新[1] 张国平[1] 

机构地区：[1]浙江大学农学系,浙江杭州310029

出　　处：《浙江农业学报》2000年第2期74-77,共4页Acta Agriculturae Zhejiangensis

基　　金：国家自然科学基金! (39870 5 0 6 );浙江省自然科学基金! (3982 5 2 )资助

摘　　要：研究了氮肥和钾肥运筹对大麦籽粒品质的影响。结果表明 ,后期施用氮肥显著提高大麦籽粒 β 葡聚糖含量 ,而钾肥运筹对大麦籽粒 β 葡聚糖含量的影响不大 ;粒重随穗期氮肥用量比例减少而增加 ,钾肥运筹对粒重的影响因氮肥的用量和比例而异 ;籽粒蛋白质含量随氮肥用量和后期比例的增加而提高 ;β 葡聚糖含量与蛋白质呈显著正相关 。The effect of different N applied rates and timing and K applied timing on barley grain quality was studied.It was shown that the β glucan content was significantly increased with applied nitrogen in late growth stage,and was little response to K fertilizer.Grain weight was increased with the reduced ratio of N application in late growth stage,and its response to K fertilizer application depended on amount and timing of N fertilizer application.With the higher N applied rate at late growth stage,protein content of barley grain increased.There were significantly positive and highly significantly negative relations between β glucan content and protein content,and between β glucan content and grain weight,respectively.

关 键 词：大麦 施肥 蛋白质 千粒重 氮肥 钾肥 

分 类 号：S512.306.2[农业科学—作物学]